Equipment:
Civic 99
D15B VTEC
Factory ECU
Factory A/T
JVC headunit
V12 Amp
Pioneer 6915 speakers
Earthing cables used: 30mm (for negative terminal to strut tower) and 26mm for all other connections.
In an attempt to make my car perform better, I recently experimented with a better grounding system.
PHASE 1:
First I upgraded the 3 stock earthing connections. That made a slight improvement in the car's responsiveness (acceleration and shifting).
Improvements Noted:
1. No more blinking/dimming in dashboard lights.
2. 1-2% improvement in acceleration and responsiveness.
Persisting Problem:
1. Low buzzing sound from speakers (with acceleration).
PHASE 2:
This morning I added an additional grounding kit which I made based on the Pivot Raizin-E instructions (pic attached).
Grounding Method:
1. Battery Negative Terminal to Driver Side Strut.
2. Negative Terminal to Alternator.
3. Negative Terminal to Intake/Engine Cylinder Head Nut.
4. Cylinder Head to Distributor.
5. Negative Terminal to Bulk Head.
6. Bulk Head to Body Earth (Side Strut) on passenger side.
Improvement Noted:
1. Decrease in gearshift jerk/shock.
Problems:
1. Low buzzing sound from speakers.
2. Dashboard Gear Indication Lights (P/R/N/D4/D3/2) blink/dim with the indicators.
3. Some acceleration may also be suffering, but has not been that noticeable.
Can someone help me fix what I am doing wrong? I'll post pictures of my setup in a couple of hours.